The **UB201KW036CF-3JB** is a high-quality, low-profile illuminated pushbutton switch manufactured by **NKK Switches**. It belongs to the UB2 series, which is known for its modular design and reliability in control panels. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Manufacturer** | NKK Switches | | **Circuit Type** | DPDT (Double Pole Double Throw) | | **Switch Function** | On-On (Alternate Action / Maintained) | | **Current Rating** | 5A @ 125/250V AC; 5A @ 30V DC | | **Illumination Type** | LED (Full Face) | | **LED Colors** | Red/Green (Bi-color) | | **Cap/Diffuser Color** | Clear/White (Rectangular) | | **Termination** | Solder Lug | | **Mounting Type** | Panel Mount, Snap-in | --- ### 2. Breakdown of the Part Number Understanding the alphanumeric code helps identify the specific components of the switch: * **UB2**: Series Name (Low Profile Pushbutton). * **01**: Circuit/Pole configuration (DPDT). * **KW03**: Standard Silver Contacts with Solder Lug terminals. * **6CF**: LED Illumination Code (6 = High Brightness, CF = Red/Green bicolor LED). * **3JB**: Cap/Bezel specifications (3 = Rectangular shape, JB = Clear lens with White diffuser). --- ### 3. Electronic & Mechanical Features #### A. Circuitry (DPDT) The **Double Pole Double Throw** configuration means this switch can control two separate electrical circuits simultaneously. Because it is "Alternate Action," the switch stays in the depressed position until pressed again (Push-On/Push-Off). #### B. Illumination (Bi-color LED) The "CF" designation indicates a **Red and Green bicolor LED**. This allows for status signaling (e.g., Red for Stop/Error, Green for Go/Normal). Note that LEDs are polarity sensitive; proper resistors must be used if the supply voltage exceeds the LED's forward voltage rating (typically ~2.1V to 3.5V). #### C. Reliability * **Mechanical Life**: Designed for approximately 1,000,000 operations. * **Electrical Life**: Rated for 100,000 operations at full load. * **Tactile Feedback**: Provides a positive "click" response to the user. --- ### 4. Common Applications Due to its aesthetic design and rugged build, this switch is commonly found in: * Professional Audio/Video broadcasting consoles. * Industrial control panels. * Medical instrumentation. * Communication equipment. ---